[RFC PATCH v8 12/23] target/arm: Handle NMI in arm_cpu_do_interrupt_aarch64()

[Jinjie Ruan]

According to Arm GIC section 4.6.3 Interrupt superpriority, the interrupt
with superpriority is always IRQ, never FIQ, so the NMI exception trap entry
behave like IRQ. And VNMI(vIRQ with Superpriority) can be raised from the
GIC or come from the hcrx_el2.HCRX_VINMI bit.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
v7:
- Add Reviewed-by.
v6:
- Not combine VFNMI with CPU_INTERRUPT_VNMI.
v4:
- Also handle VNMI in arm_cpu_do_interrupt_aarch64().
v3:
- Remove the FIQ NMI handle.
---
 target/arm/helper.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/target/arm/helper.c b/target/arm/helper.c
index 81f4a8f194..e279b26e9d 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -11625,6 +11625,8 @@ static void arm_cpu_do_interrupt_aarch64(CPUState *cs)
         break;
     case EXCP_IRQ:
     case EXCP_VIRQ:
+    case EXCP_NMI:
+    case EXCP_VNMI:
         addr += 0x80;
         break;
     case EXCP_FIQ:
-- 
2.34.1